English verb conjugation
CAN CONTEMPLATE

Regular verb: contemplate - contemplated - contemplated

Affirmation

Simple form	V-ing form
I can contemplate you can contemplate he can contemplate we can contemplate you can contemplate they can contemplate	I can be contemplating you can be contemplating he can be contemplating we can be contemplating you can be contemplating they can be contemplating
Perfect	V-ing perfect
I can have contemplated you can have contemplated he can have contemplated we can have contemplated you can have contemplated they can have contemplated	I can have been contemplating you can have been contemplating he can have been contemplating we can have been contemplating you can have been contemplating they can have been contemplating

Negation

Simple form	V-ing form
I can't contemplate you can't contemplate he can't contemplate we can't contemplate you can't contemplate they can't contemplate	I can't be contemplating you can't be contemplating he can't be contemplating we can't be contemplating you can't be contemplating they can't be contemplating
Perfect	V-ing perfect
I can't have contemplated you can't have contemplated he can't have contemplated we can't have contemplated you can't have contemplated they can't have contemplated	I can't have been contemplating you can't have been contemplating he can't have been contemplating we can't have been contemplating you can't have been contemplating they can't have been contemplating

Interrogative form

Simple form	V-ing form
can I contemplate? can you contemplate? can he contemplate? can we contemplate? can you contemplate? can they contemplate?	can I be contemplating? can you be contemplating? can he be contemplating? can we be contemplating? can you be contemplating? can they be contemplating?
Perfect	V-ing perfect
can I have contemplated? can you have contemplated? can he have contemplated? can we have contemplated? can you have contemplated? can they have contemplated?	can I have been contemplating? can you have been contemplating? can he have been contemplating? can we have been contemplating? can you have been contemplating? can they have been contemplating?

Interro-negative form

Simple form	V-ing form
can't I contemplate? can't you contemplate? can't he contemplate? can't we contemplate? can't you contemplate? can't they contemplate?	can't I be contemplating? can't you be contemplating? can't he be contemplating? can't we be contemplating? can't you be contemplating? can't they be contemplating?
Perfect	V-ing perfect
can't I have contemplated? can't you have contemplated? can't he have contemplated? can't we have contemplated? can't you have contemplated? can't they have contemplated?	can't I have been contemplating? can't you have been contemplating? can't he have been contemplating? can't we have been contemplating? can't you have been contemplating? can't they have been contemplating?